Afterburner fuel injection system

In a gas turbine engine having at least one turbine wheel, an afterburner and a flame holder located in the afterburner such that exhaust gases pass through the turbine wheel into the afterburner from an upstream direction toward a downstream direction generally parallel to a longitudinal axis of the turbojet engine, the improved system for injecting fuel into the exhaust gas stream in the afterburner comprising:

• (a) a plurality of individual tubular injectors regularly distributed about the periphery of the afterburner and extending into the afterburner generally perpendicularly to the flow of gases therethrough;
• (b) fuel supply means to supply fuel to each of the tubular injectors independently of the other tubular injectors;
• (c) atomizing chamber means, one atomizing chamber associated with each tubular injector each atomizing chamber means defining at least one intake orifice to allow exhaust gas to pass into the chamber, and further defining a plurality of exit orifices, such that (i) the number of exit orifices is greater than the number of intake orifices, and (ii) the size of each exit orifice is smaller then the size of the at least one intake orifice;
• and,
• (d) nozzle means associated with each tubular injector to spray fuel into the associated atomizing chamber so as to create a finely atomized fuel mixture which passes through the exit orifices into the afterburner.